Question 2080 Ti - - - - 4 x 4k displays detected but I can only enable 3 at once ?

[dali7384]

Hello,
I am using a 2080 TI on Windows 10.

I just moved and switched from a lower resolution (3x2k 1x1k) to a higher resolution setup (4x4k), and now I can't enable all 4 monitors at once, it shows 4 there but as soon as I checked the unchecked monitor, another monitor will be unchecked automatically, making it max out at 3.

The monitor itself is fine since if I unplug the other other 3 monitors, the remaining one will work.
I am just wondering if this is a bandwidth issue and if there is any way to get around it..?

Also, in the Windows Display Settings, it showed a small 4th monitor and I am not allowed to enable that for whatever reason.

https://imgur.com/a/qqLUnad

 

[ex_bubblehead]

With 4 such high resolution monitors you have exceeded the maximum horizontal resolution of the card. You can only run 3 at that resolution. If you want 4 then you need an additional card.

 

[dali7384]

With 4 such high resolution monitors you have exceeded the maximum horizontal resolution of the card. You can only run 3 at that resolution. If you want 4 then you need an additional card.

Oh, okay, thanks for the explanation.
I am wondering where I can find the maximum resolution number. Oh and the refresh rate for my main is 165Hz while other 3 being 60Hz if this matters
And if I were to switch to 4090 (or lower the resolution), would this work?

 

[thestryker]

Oh, okay, thanks for the explanation.
I am wondering where I can find the maximum resolution number. Oh and the refresh rate for my main is 165Hz while other 3 being 60Hz if this matters
And if I were to switch to 4090 (or lower the resolution), would this work?

They haven't particularly changed anything display engine wise since the 20 series. You could try running the 165hz screen at 120hz to see if that does the trick (all running 60hz should work, but that of course kills the entire point of having a higher refresh display). Lowering the resolution would of course work, but I'm assuming there was a reason for 4k displays.

 

[dali7384]

They haven't particularly changed anything display engine wise since the 20 series. You could try running the 165hz screen at 120hz to see if that does the trick (all running 60hz should work, but that of course kills the entire point of having a higher refresh display). Lowering the resolution would of course work, but I'm assuming there was a reason for 4k displays.

After playing around, 2x4k@60Hz + 2k@60Hz (LG) + 4k@120Hz works
however, the last monitor, if I were to change it in the control panel, the one I set it to 2k won't show up, it only shows up when I change the refresh rate from 165 to 120 in the Samsung G7 directly using the bottoms on the monitor

I have read something like for 4090 I can connect 3 of them to 4090 and 1 to the Intel UHD iGPU, so I will probably try that once I finish building my new PC, then I should be able to run all on 4Ks and the main monitor can run at 165Hz